if-1 is a 0 of the polynomial p(x)=ax³-x²+x+4.
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Step-by-step explanation:
-1 is zero of the polynomial
therefore putting the value of x= -1,then p(x) would be=0
a(-1)^3-(-1)^2+(-1)+4=0
-a-1-1+4=0
-a-2+4=0
-a= -2
a=2
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